Standard: GB 827 - 1986
Available sizes: (Φ1.6) to Φ2.5 (3 sizes)
| Size | P | k_max | k_min | s_max | s_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|
| (Φ1.6) | 3.74 | 2.15 | 1 | 3.26 | 1.4 | 1 | 1.9 |
| Φ2 | 5.54 | 3.15 | 1 | 5.06 | 2 | 1.6 | 2.9 |
| Φ2.5 | 9.09 | 5.15 | 1.5 | 8.51 | 3.2 | 2.8 | 4.7 |
Standard corrosion protection for indoor and mild outdoor environments.
Salt spray: 96–200 hours | RoHS compliant (trivalent chromium)
High-performance coating for automotive, marine, and harsh environments.
Salt spray: 720–1500 hours | Recommended for grade 8.8+
Heavy-duty protection for structural and outdoor applications.
Salt spray: 500–1000 hours | Thread tolerance adjustment required
Note for high-strength fasteners (Grade 10.9, 12.9): Electroplating processes require hydrogen embrittlement relief baking (minimum 4 hours at 200°C within 4 hours of plating). Contact our engineering team for grade-specific plating recommendations.
Request detailed technical specifications, material certifications, and availability information for your application requirements. Our engineering team can provide product recommendations, custom specifications, and technical documentation.
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